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NAA and STS effects on potted bougainvillea: early flower death allows delayed ...
Gago, Custódia Maria Luís; Monteiro, José A.The effects of Silver Thiosulphate (STS) and Naphtalene Acetic Acid (NAA) (0,45%NAA+1,2% NAA-amide at 500 mg.l-1) on flowering bud development, anthesis duration, bract longevity and bract photosynthetic rate were studied in Bougainvillea spectabilis ‘Killie Campbell’ plants, under interior conditions. The relationships between bract longevity and the above parameters were also investigated. NAA induced longer ...
NAA and STS effects on bract survival time, carbohydrate content, respiration r...
Gago, Custódia Maria Luís; Monteiro, José A.The aims of this work were to deepen the knowledge on the physiology of bract abscission in Bougainvillea spectabilis ‘Killie Campbell’ plants, in what relates to respiration and carbon balance. Using the effects induced by Silver Thiosulphate (STS) and/or Naphtalene Acetic Acid (NAA, at high concentration: 500 mg.l-1) on bract abscission under interior conditions, the relationship between bract survival time (...
A influência da temperatura na germinação de sementes do endemismo algarvio Tub...
Fernandes, Janete; Monteiro, José A.; Fernandes, Jacinta; Osório, Júlio; Correia, Maria JoãoAs sementes de Tuberaria major (willk.) P. Silva & Rozeira, um endemismo lusitano com distribuição limitada à região do Algarve, apresentam a testa dura, que é responsável pela dormência primária das mesmas.
Exogenous sucrose effects on carbohydrate level, flower respiration and longevi...
Monteiro, José A.; Nell, Terril A.; Barrett, James E.The effect of continuous injection of exogenous sucrose on single flower postproduction longevity of attached flowers of potted ‘Meijikatar’ miniature roses was studied. At bud showing color, with sepals starting to unfold, plants were moved to interior conditions and started being continuously injected with a solution of 3% sucrose or distilled water. Carbohydrate levels, flower respiration and single flower ...
Postproduction of potted miniature rose: flower respiration and single flower l...
Monteiro, José A.; Nell, Terril A.; Barrett, James E.Research was conducted to investigate the relationship between flower respiration and flower longevity as well as to assess the possibility of using miniature rose (Rosa hybrida L.) flower respiration as an indicator of potential flower longevity. Using several miniature rose cultivars as a source of variation, four experiments were conducted throughout the year to study flower respiration and flower longevity ...
High production temperature increases postproduction flower longevity and reduc...
Monteiro, José A.; Nell, Terril A.; Barrett, James E.The effect of two temperature regimes (29 °C day/24 °C night and 24 °C day/18 °C night) and of a 4-hour night interruption, during production, was studied on postproduction flower longevity and bud drop of ‘Meirutral’ and ‘Meidanclar’ potted, miniature roses (Rosa L. sp.). High production temperatures increased postproduction flower longevity and decreased postproduction bud drop. In ‘Meidanclar’, the high prod...
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